Fort Hood is a United States military post located outside of Killeen, Texas. The post is named after Confederate General John Bell Hood. It is located halfway between Austin and Waco, about 60 miles (97 km) from each, within the U.S. state of Texas.

Its origin was the need for wide-open space to test and train with World War II tank destroyers. The War Department announced the location in January 1942, and the initial completion was set for that August. As originally constructed, Fort Hood had an area of 158,706 acres, with billeting for 6,007 officers and 82,610 enlisted personnel. The main cantonment of Fort Hood had a total population of 53,416 as of the 2010 U.S. Census. It is in Bell County, with some portions of the base in Coryell County.